Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark Gerard O'Callaghan, MD

Individual provider Neuroradiology Physician · NPI 1023180890

Dr. Mark Gerard O'Callaghan, MD is a Diagnostic Radiology in Tacoma, Washington. Qualified in 1993, 33 years ago. Practices with Kaiser Foundation Health Plan of Washington, a 1,519-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
33
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

209 Martin Luther King Jr Way
Tacoma, WA 98405-4265
Phone: (253) 596-3300
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1959 Ne Pacific St, Seattle, WA 98195-0001 — (206) 598-3300

Specialties & licences

Neuroradiology Physician (primary) Taxonomy 2085N0700X · Licence MD00047091 (WA)

Record details

NPI number1023180890
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 15, 2006
Last updated in NPPESApril 28, 2021
Certification dateApril 28, 2021
Mailing addressTacoma Medical Center, 209 Martin Luther King Jr. Way, Tacoma, WA 98405

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Kaiser Foundation Health Plan Of Washington — 1519 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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